The DHCP server should be configurable with a database of hostname, IP, and MAC address relationships. The DHCP server can be configured to provide the same IP address every time that a particular machine requests an IP address. This is a common requirement for Association Acceptors that obtain IP addresses from DHCP. The Association Acceptor may be identified by either the hardware MAC address or the hostname requested by the Association Acceptor.
The IP address can be permanently assigned as a static IP address so that legacy Association Requestor can be configured to use that IP address while managed Association Requestor can utilize the DNS services to obtain its IP address.